artillery
Cloud-scale load testing. https://www.artillery.io
calibre
Calibre - Page speed performance testing with Google Lighthouse
react-performance-testing
You can test React(ReactNative) runtime performance by using this lib. If you want to check the number of renders, or render time in a test environment, this lib makes sense.
loadtest
Run load tests for your web application. Mostly ab-compatible interface, with an option to force requests per second. Includes an API for automated load testing.